2 * $NetBSD: ugen.c,v 1.27 1999/10/28 12:08:38 augustss Exp $
3 * $NetBSD: ugen.c,v 1.59 2002/07/11 21:14:28 augustss Exp $
4 * $FreeBSD: src/sys/dev/usb/ugen.c,v 1.81 2003/11/09 09:17:22 tanimura Exp $
5 * $DragonFly: src/sys/dev/usbmisc/ugen/ugen.c,v 1.33 2007/11/06 07:37:01 hasso Exp $
9 * Also already merged from NetBSD:
10 * $NetBSD: ugen.c,v 1.61 2002/09/23 05:51:20 simonb Exp $
11 * $NetBSD: ugen.c,v 1.64 2003/06/28 14:21:46 darrenr Exp $
12 * $NetBSD: ugen.c,v 1.65 2003/06/29 22:30:56 fvdl Exp $
16 * Copyright (c) 1998 The NetBSD Foundation, Inc.
17 * All rights reserved.
19 * This code is derived from software contributed to The NetBSD Foundation
20 * by Lennart Augustsson (lennart@augustsson.net) at
21 * Carlstedt Research & Technology.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * This product includes software developed by the NetBSD
34 * Foundation, Inc. and its contributors.
35 * 4. Neither the name of The NetBSD Foundation nor the names of its
36 * contributors may be used to endorse or promote products derived
37 * from this software without specific prior written permission.
39 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
40 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
41 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
43 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
44 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
45 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
46 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
47 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
49 * POSSIBILITY OF SUCH DAMAGE.
53 #include <sys/param.h>
54 #include <sys/systm.h>
55 #include <sys/kernel.h>
56 #include <sys/malloc.h>
57 #include <sys/module.h>
59 #include <sys/ioccom.h>
61 #include <sys/fcntl.h>
62 #include <sys/filio.h>
65 #include <sys/select.h>
66 #include <sys/vnode.h>
68 #include <sys/sysctl.h>
69 #include <sys/thread2.h>
71 #include <bus/usb/usb.h>
72 #include <bus/usb/usbdi.h>
73 #include <bus/usb/usbdi_util.h>
77 SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB ugen");
80 #define DPRINTF(x) if (ugendebug) kprintf x
81 #define DPRINTFN(n,x) if (ugendebug>(n)) kprintf x
83 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW,
84 &ugendebug, 0, "ugen debug level");
90 static int ugen_bufsize = 16384;
91 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, bufsize, CTLFLAG_RW,
92 &ugen_bufsize, 0, "ugen temporary buffer size");
94 #define UGEN_CHUNK 128 /* chunk size for read */
95 #define UGEN_IBSIZE 1020 /* buffer size */
97 #define UGEN_NISOFRAMES 500 /* 0.5 seconds worth */
98 #define UGEN_NISOREQS 6 /* number of outstanding xfer requests */
99 #define UGEN_NISORFRMS 4 /* number of frames (miliseconds) per req */
101 struct ugen_endpoint {
102 struct ugen_softc *sc;
104 usb_endpoint_descriptor_t *edesc;
105 usbd_interface_handle iface;
107 #define UGEN_ASLP 0x02 /* waiting for data */
108 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */
109 usbd_pipe_handle pipeh;
112 u_char *ibuf; /* start of buffer (circular for isoc) */
113 u_char *fill; /* location for input (isoc) */
114 u_char *limit; /* end of circular buffer (isoc) */
115 u_char *cur; /* current read location (isoc) */
118 struct ugen_endpoint *sce;
119 usbd_xfer_handle xfer;
121 u_int16_t sizes[UGEN_NISORFRMS];
122 } isoreqs[UGEN_NISOREQS];
126 device_t sc_dev; /* base device */
127 usbd_device_handle sc_udev;
129 char sc_is_open[USB_MAX_ENDPOINTS];
130 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2];
145 #define UGEN_CDEV_MAJOR 114
147 static struct dev_ops ugen_ops = {
148 { "ugen", UGEN_CDEV_MAJOR, 0 },
150 .d_close = ugenclose,
152 .d_write = ugenwrite,
153 .d_ioctl = ugenioctl,
157 static void ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr,
159 static void ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr,
161 static int ugen_do_read(struct ugen_softc *, int, struct uio *, int);
162 static int ugen_do_write(struct ugen_softc *, int, struct uio *, int);
163 static int ugen_do_ioctl(struct ugen_softc *, int, u_long,
165 static void ugen_make_devnodes(struct ugen_softc *sc);
166 static void ugen_destroy_devnodes(struct ugen_softc *sc);
167 static int ugen_set_config(struct ugen_softc *sc, int configno);
168 static usb_config_descriptor_t *ugen_get_cdesc(struct ugen_softc *sc,
169 int index, int *lenp);
170 static usbd_status ugen_set_interface(struct ugen_softc *, int, int);
171 static int ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx);
173 #define UGENUNIT(n) ((lminor(n) >> 4) & 0xff)
174 #define UGENENDPOINT(n) (minor(n) & 0xf)
175 #define UGENMINOR(u, e) (((u & 0xf) << 4) | ((u & 0xf0) << 12) | (e))
176 #define UGENUNITMASK 0xffff00f0
178 static device_probe_t ugen_match;
179 static device_attach_t ugen_attach;
180 static device_detach_t ugen_detach;
182 static devclass_t ugen_devclass;
184 static kobj_method_t ugen_methods[] = {
185 DEVMETHOD(device_probe, ugen_match),
186 DEVMETHOD(device_attach, ugen_attach),
187 DEVMETHOD(device_detach, ugen_detach),
191 static driver_t ugen_driver = {
194 sizeof(struct ugen_softc)
197 MODULE_DEPEND(ugen, usb, 1, 1, 1);
200 ugen_match(device_t self)
202 struct usb_attach_arg *uaa = device_get_ivars(self);
206 return (uaa->matchlvl);
209 return (UMATCH_GENERIC);
211 return (UMATCH_NONE);
215 ugen_attach(device_t self)
217 struct ugen_softc *sc = device_get_softc(self);
218 struct usb_attach_arg *uaa = device_get_ivars(self);
219 usbd_device_handle udev;
224 sc->sc_udev = udev = uaa->device;
226 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints);
228 /* First set configuration index 0, the default one for ugen. */
229 err = usbd_set_config_index(udev, 0, 0);
231 kprintf("%s: setting configuration index 0 failed\n",
232 device_get_nameunit(sc->sc_dev));
236 conf = usbd_get_config_descriptor(udev)->bConfigurationValue;
238 /* Set up all the local state for this configuration. */
239 err = ugen_set_config(sc, conf);
241 kprintf("%s: setting configuration %d failed\n",
242 device_get_nameunit(sc->sc_dev), conf);
247 /* the main device, ctrl endpoint */
248 dev_ops_add(&ugen_ops,
249 UGENUNITMASK, UGENMINOR(device_get_unit(sc->sc_dev), 0));
250 make_dev(&ugen_ops, UGENMINOR(device_get_unit(sc->sc_dev), 0),
251 UID_ROOT, GID_OPERATOR, 0644, "%s", device_get_nameunit(sc->sc_dev));
257 ugen_make_devnodes(struct ugen_softc *sc)
262 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
263 if (sc->sc_endpoints[endptno][IN].sc != NULL ||
264 sc->sc_endpoints[endptno][OUT].sc != NULL ) {
265 /* endpt can be 0x81 and 0x01, representing
266 * endpoint address 0x01 and IN/OUT directions.
267 * We map both endpts to the same device,
268 * IN is reading from it, OUT is writing to it.
270 * In the if clause above we check whether one
271 * of the structs is populated.
273 dev = make_dev(&ugen_ops,
274 UGENMINOR(device_get_unit(sc->sc_dev), endptno),
275 UID_ROOT, GID_OPERATOR, 0644,
277 device_get_nameunit(sc->sc_dev), endptno);
278 if (sc->sc_endpoints[endptno][IN].sc != NULL) {
280 if (sc->sc_endpoints[endptno][IN].dev)
281 release_dev(sc->sc_endpoints[endptno][IN].dev);
282 sc->sc_endpoints[endptno][IN].dev = dev;
284 if (sc->sc_endpoints[endptno][OUT].sc != NULL) {
286 if (sc->sc_endpoints[endptno][OUT].dev)
287 release_dev(sc->sc_endpoints[endptno][OUT].dev);
288 sc->sc_endpoints[endptno][OUT].dev = dev;
295 ugen_destroy_devnodes(struct ugen_softc *sc)
300 /* destroy all devices for the other (existing) endpoints as well */
301 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
302 if (sc->sc_endpoints[endptno][IN].sc != NULL ||
303 sc->sc_endpoints[endptno][OUT].sc != NULL ) {
304 /* endpt can be 0x81 and 0x01, representing
305 * endpoint address 0x01 and IN/OUT directions.
306 * We map both endpoint addresses to the same device,
307 * IN is reading from it, OUT is writing to it.
309 * In the if clause above we check whether one
310 * of the structs is populated.
312 dev = sc->sc_endpoints[endptno][IN].dev;
315 sc->sc_endpoints[endptno][IN].dev = NULL;
317 dev = sc->sc_endpoints[endptno][OUT].dev;
320 sc->sc_endpoints[endptno][OUT].dev = NULL;
327 ugen_set_config(struct ugen_softc *sc, int configno)
329 usbd_device_handle dev = sc->sc_udev;
330 usbd_interface_handle iface;
331 usb_endpoint_descriptor_t *ed;
332 struct ugen_endpoint *sce;
333 u_int8_t niface, nendpt;
334 int ifaceno, endptno, endpt;
338 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n",
339 device_get_nameunit(sc->sc_dev), configno, sc));
341 ugen_destroy_devnodes(sc);
343 /* We start at 1, not 0, because we don't care whether the
344 * control endpoint is open or not. It is always present.
346 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
347 if (sc->sc_is_open[endptno]) {
349 ("ugen_set_config: %s - endpoint %d is open\n",
350 device_get_nameunit(sc->sc_dev), endptno));
351 return (USBD_IN_USE);
355 /* Avoid setting the current value. */
356 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) {
357 err = usbd_set_config_no(dev, configno, 1);
362 err = usbd_interface_count(dev, &niface);
365 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints);
366 for (ifaceno = 0; ifaceno < niface; ifaceno++) {
367 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno));
368 err = usbd_device2interface_handle(dev, ifaceno, &iface);
371 err = usbd_endpoint_count(iface, &nendpt);
374 for (endptno = 0; endptno < nendpt; endptno++) {
375 ed = usbd_interface2endpoint_descriptor(iface,endptno);
376 endpt = ed->bEndpointAddress;
377 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
378 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
379 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x"
381 endptno, endpt, UE_GET_ADDR(endpt),
382 UE_GET_DIR(endpt), sce));
389 ugen_make_devnodes(sc);
391 return (USBD_NORMAL_COMPLETION);
395 ugenopen(struct dev_open_args *ap)
397 cdev_t dev = ap->a_head.a_dev;
398 struct ugen_softc *sc;
399 int unit = UGENUNIT(dev);
400 int endpt = UGENENDPOINT(dev);
401 usb_endpoint_descriptor_t *edesc;
402 struct ugen_endpoint *sce;
405 usbd_xfer_handle xfer;
409 sc = devclass_get_softc(ugen_devclass, unit);
413 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n",
414 ap->a_oflags, ap->a_devtype, unit, endpt));
416 if (sc == NULL || sc->sc_dying)
419 if (sc->sc_is_open[endpt])
422 if (endpt == USB_CONTROL_ENDPOINT) {
423 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1;
427 /* Make sure there are pipes for all directions. */
428 for (dir = OUT; dir <= IN; dir++) {
429 if (ap->a_oflags & (dir == OUT ? FWRITE : FREAD)) {
430 sce = &sc->sc_endpoints[endpt][dir];
431 if (sce == 0 || sce->edesc == 0)
436 /* Actually open the pipes. */
437 /* XXX Should back out properly if it fails. */
438 for (dir = OUT; dir <= IN; dir++) {
439 if (!(ap->a_oflags & (dir == OUT ? FWRITE : FREAD)))
441 sce = &sc->sc_endpoints[endpt][dir];
443 sce->timeout = USBD_NO_TIMEOUT;
444 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n",
445 sc, endpt, dir, sce));
447 switch (edesc->bmAttributes & UE_XFERTYPE) {
450 err = usbd_open_pipe(sce->iface,
451 edesc->bEndpointAddress, 0, &sce->pipeh);
456 isize = UGETW(edesc->wMaxPacketSize);
457 if (isize == 0) /* shouldn't happen */
459 sce->ibuf = kmalloc(isize, M_USBDEV, M_WAITOK);
460 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n",
462 if ((clist_alloc_cblocks(&sce->q, UGEN_IBSIZE,
463 UGEN_IBSIZE), 0) == -1)
465 err = usbd_open_pipe_intr(sce->iface,
466 edesc->bEndpointAddress,
467 USBD_SHORT_XFER_OK, &sce->pipeh, sce,
468 sce->ibuf, isize, ugenintr,
469 USBD_DEFAULT_INTERVAL);
471 kfree(sce->ibuf, M_USBDEV);
472 clist_free_cblocks(&sce->q);
475 DPRINTFN(5, ("ugenopen: interrupt open done\n"));
478 err = usbd_open_pipe(sce->iface,
479 edesc->bEndpointAddress, 0, &sce->pipeh);
486 isize = UGETW(edesc->wMaxPacketSize);
487 if (isize == 0) /* shouldn't happen */
489 sce->ibuf = kmalloc(isize * UGEN_NISOFRAMES,
491 sce->cur = sce->fill = sce->ibuf;
492 sce->limit = sce->ibuf + isize * UGEN_NISOFRAMES;
493 DPRINTFN(5, ("ugenopen: isoc endpt=%d, isize=%d\n",
495 err = usbd_open_pipe(sce->iface,
496 edesc->bEndpointAddress, 0, &sce->pipeh);
498 kfree(sce->ibuf, M_USBDEV);
501 for(i = 0; i < UGEN_NISOREQS; ++i) {
502 sce->isoreqs[i].sce = sce;
503 xfer = usbd_alloc_xfer(sc->sc_udev);
506 sce->isoreqs[i].xfer = xfer;
507 buf = usbd_alloc_buffer
508 (xfer, isize * UGEN_NISORFRMS);
513 sce->isoreqs[i].dmabuf = buf;
514 for(j = 0; j < UGEN_NISORFRMS; ++j)
515 sce->isoreqs[i].sizes[j] = isize;
517 (xfer, sce->pipeh, &sce->isoreqs[i],
518 sce->isoreqs[i].sizes,
519 UGEN_NISORFRMS, USBD_NO_COPY,
521 (void)usbd_transfer(xfer);
523 DPRINTFN(5, ("ugenopen: isoc open done\n"));
526 while (--i >= 0) /* implicit buffer free */
527 usbd_free_xfer(sce->isoreqs[i].xfer);
530 sce->timeout = USBD_DEFAULT_TIMEOUT;
534 sc->sc_is_open[endpt] = 1;
539 ugenclose(struct dev_close_args *ap)
541 cdev_t dev = ap->a_head.a_dev;
542 int endpt = UGENENDPOINT(dev);
543 struct ugen_softc *sc;
544 struct ugen_endpoint *sce;
548 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
550 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n",
551 ap->a_fflag, ap->a_devtype, UGENUNIT(dev), endpt));
554 if (!sc->sc_is_open[endpt]) {
555 kprintf("ugenclose: not open\n");
560 if (endpt == USB_CONTROL_ENDPOINT) {
561 DPRINTFN(5, ("ugenclose: close control\n"));
562 sc->sc_is_open[endpt] = 0;
566 for (dir = OUT; dir <= IN; dir++) {
567 if (!(ap->a_fflag & (dir == OUT ? FWRITE : FREAD)))
569 sce = &sc->sc_endpoints[endpt][dir];
570 if (sce == NULL || sce->pipeh == NULL)
572 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n",
575 usbd_abort_pipe(sce->pipeh);
576 usbd_close_pipe(sce->pipeh);
579 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
581 ndflush(&sce->q, sce->q.c_cc);
582 clist_free_cblocks(&sce->q);
585 for (i = 0; i < UGEN_NISOREQS; ++i)
586 usbd_free_xfer(sce->isoreqs[i].xfer);
591 if (sce->ibuf != NULL) {
592 kfree(sce->ibuf, M_USBDEV);
594 clist_free_cblocks(&sce->q);
597 sc->sc_is_open[endpt] = 0;
603 ugen_do_read(struct ugen_softc *sc, int endpt, struct uio *uio, int flag)
605 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN];
608 usbd_xfer_handle xfer;
612 u_char buffer[UGEN_CHUNK];
614 DPRINTFN(5, ("%s: ugenread: %d\n", device_get_nameunit(sc->sc_dev), endpt));
619 if (endpt == USB_CONTROL_ENDPOINT)
625 if (sce->edesc == NULL) {
626 kprintf("ugenread: no edesc\n");
629 if (sce->pipeh == NULL) {
630 kprintf("ugenread: no pipe\n");
634 buf = getugenbuf(ugen_bufsize, &ugen_bbsize);
636 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
638 /* Block until activity occurred. */
640 while (sce->q.c_cc == 0) {
641 if (flag & IO_NDELAY) {
646 sce->state |= UGEN_ASLP;
647 DPRINTFN(5, ("ugenread: sleep on %p\n", sce));
648 error = tsleep(sce, PCATCH, "ugenri", 0);
649 DPRINTFN(5, ("ugenread: woke, error=%d\n", error));
653 sce->state &= ~UGEN_ASLP;
659 /* Transfer as many chunks as possible. */
660 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) {
661 n = min(sce->q.c_cc, uio->uio_resid);
662 if (n > sizeof(buffer))
665 /* Remove a small chunk from the input queue. */
666 q_to_b(&sce->q, buffer, n);
667 DPRINTFN(5, ("ugenread: got %d chars\n", n));
669 /* Copy the data to the user process. */
670 error = uiomove(buffer, n, uio);
676 xfer = usbd_alloc_xfer(sc->sc_udev);
681 while ((n = min(ugen_bbsize, uio->uio_resid)) != 0) {
682 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n));
684 err = usbd_bulk_transfer(
686 sce->state & UGEN_SHORT_OK ?
687 USBD_SHORT_XFER_OK : 0,
688 sce->timeout, buf, &tn, "ugenrb");
690 if (err == USBD_INTERRUPTED)
692 else if (err == USBD_TIMEOUT)
698 DPRINTFN(1, ("ugenread: got %d bytes\n", tn));
699 error = uiomove(buf, tn, uio);
703 usbd_free_xfer(xfer);
707 while (sce->cur == sce->fill) {
708 if (flag & IO_NDELAY) {
713 sce->state |= UGEN_ASLP;
714 DPRINTFN(5, ("ugenread: sleep on %p\n", sce));
715 error = tsleep(sce, PCATCH, "ugenri", 0);
716 DPRINTFN(5, ("ugenread: woke, error=%d\n", error));
720 sce->state &= ~UGEN_ASLP;
725 while (sce->cur != sce->fill && uio->uio_resid > 0 && !error) {
726 if(sce->fill > sce->cur)
727 n = min(sce->fill - sce->cur, uio->uio_resid);
729 n = min(sce->limit - sce->cur, uio->uio_resid);
731 DPRINTFN(5, ("ugenread: isoc got %d chars\n", n));
733 /* Copy the data to the user process. */
734 error = uiomove(sce->cur, n, uio);
738 if(sce->cur >= sce->limit)
739 sce->cur = sce->ibuf;
750 relugenbuf(buf, ugen_bbsize);
755 ugenread(struct dev_read_args *ap)
757 cdev_t dev = ap->a_head.a_dev;
758 int endpt = UGENENDPOINT(dev);
759 struct ugen_softc *sc;
762 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
765 error = ugen_do_read(sc, endpt, ap->a_uio, ap->a_ioflag);
766 if (--sc->sc_refcnt < 0)
767 usb_detach_wakeup(sc->sc_dev);
772 ugen_do_write(struct ugen_softc *sc, int endpt, struct uio *uio, int flag)
774 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT];
779 usbd_xfer_handle xfer;
782 DPRINTFN(5, ("%s: ugenwrite: %d\n", device_get_nameunit(sc->sc_dev), endpt));
787 if (endpt == USB_CONTROL_ENDPOINT)
793 if (sce->edesc == NULL) {
794 kprintf("ugenwrite: no edesc\n");
797 if (sce->pipeh == NULL) {
798 kprintf("ugenwrite: no pipe\n");
802 buf = getugenbuf(ugen_bufsize, &ugen_bbsize);
804 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
806 xfer = usbd_alloc_xfer(sc->sc_udev);
811 while ((n = min(ugen_bbsize, uio->uio_resid)) != 0) {
812 error = uiomove(buf, n, uio);
815 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n));
816 err = usbd_bulk_transfer(xfer, sce->pipeh, 0,
817 sce->timeout, buf, &n,"ugenwb");
819 if (err == USBD_INTERRUPTED)
821 else if (err == USBD_TIMEOUT)
828 usbd_free_xfer(xfer);
831 xfer = usbd_alloc_xfer(sc->sc_udev);
836 while ((n = min(UGETW(sce->edesc->wMaxPacketSize),
837 uio->uio_resid)) != 0) {
838 error = uiomove(buf, n, uio);
841 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n));
842 err = usbd_intr_transfer(xfer, sce->pipeh, 0,
843 sce->timeout, buf, &n,"ugenwi");
845 if (err == USBD_INTERRUPTED)
847 else if (err == USBD_TIMEOUT)
854 usbd_free_xfer(xfer);
861 relugenbuf(buf, ugen_bbsize);
866 ugenwrite(struct dev_write_args *ap)
868 cdev_t dev = ap->a_head.a_dev;
869 int endpt = UGENENDPOINT(dev);
870 struct ugen_softc *sc;
873 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
876 error = ugen_do_write(sc, endpt, ap->a_uio, ap->a_ioflag);
877 if (--sc->sc_refcnt < 0)
878 usb_detach_wakeup(sc->sc_dev);
883 ugen_detach(device_t self)
885 struct ugen_softc *sc = device_get_softc(self);
886 struct ugen_endpoint *sce;
889 DPRINTF(("ugen_detach: sc=%p\n", sc));
892 /* Abort all pipes. Causes processes waiting for transfer to wake. */
893 for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
894 for (dir = OUT; dir <= IN; dir++) {
895 sce = &sc->sc_endpoints[i][dir];
896 if (sce && sce->pipeh)
897 usbd_abort_pipe(sce->pipeh);
901 if (--sc->sc_refcnt >= 0) {
903 for (i = 0; i < USB_MAX_ENDPOINTS; i++)
904 wakeup(&sc->sc_endpoints[i][IN]);
905 /* Wait for processes to go away. */
906 usb_detach_wait(sc->sc_dev);
910 /* destroy the device for the control endpoint */
911 ugen_destroy_devnodes(sc);
912 dev_ops_remove(&ugen_ops,
913 UGENUNITMASK, UGENMINOR(device_get_unit(sc->sc_dev), 0));
918 ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
920 struct ugen_endpoint *sce = addr;
921 /*struct ugen_softc *sc = sce->sc;*/
925 if (status == USBD_CANCELLED)
928 if (status != USBD_NORMAL_COMPLETION) {
929 DPRINTF(("ugenintr: status=%d\n", status));
930 if (status == USBD_STALLED)
931 usbd_clear_endpoint_stall_async(sce->pipeh);
935 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
938 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n",
939 xfer, status, count));
940 DPRINTFN(5, (" data = %02x %02x %02x\n",
941 ibuf[0], ibuf[1], ibuf[2]));
943 (void)b_to_q(ibuf, count, &sce->q);
945 if (sce->state & UGEN_ASLP) {
946 sce->state &= ~UGEN_ASLP;
947 DPRINTFN(5, ("ugen_intr: waking %p\n", sce));
950 selwakeup(&sce->rsel);
954 ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr,
957 struct isoreq *req = addr;
958 struct ugen_endpoint *sce = req->sce;
962 /* Return if we are aborting. */
963 if (status == USBD_CANCELLED)
966 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
967 DPRINTFN(5,("ugen_isoc_rintr: xfer %d, count=%d\n",
968 (int)(req - sce->isoreqs),
971 /* throw away oldest input if the buffer is full */
972 if(sce->fill < sce->cur && sce->cur <= sce->fill + count) {
974 if(sce->cur >= sce->limit)
975 sce->cur = sce->ibuf + (sce->limit - sce->cur);
976 DPRINTFN(5, ("ugen_isoc_rintr: throwing away %d bytes\n",
980 isize = UGETW(sce->edesc->wMaxPacketSize);
981 for (i = 0; i < UGEN_NISORFRMS; i++) {
982 u_int32_t actlen = req->sizes[i];
983 char const *buf = (char const *)req->dmabuf + isize * i;
985 /* copy data to buffer */
987 n = min(actlen, sce->limit - sce->fill);
988 memcpy(sce->fill, buf, n);
993 if(sce->fill == sce->limit)
994 sce->fill = sce->ibuf;
997 /* setup size for next transfer */
998 req->sizes[i] = isize;
1001 usbd_setup_isoc_xfer(xfer, sce->pipeh, req, req->sizes, UGEN_NISORFRMS,
1002 USBD_NO_COPY, ugen_isoc_rintr);
1003 (void)usbd_transfer(xfer);
1005 if (sce->state & UGEN_ASLP) {
1006 sce->state &= ~UGEN_ASLP;
1007 DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce));
1010 selwakeup(&sce->rsel);
1014 ugen_set_interface(struct ugen_softc *sc, int ifaceidx, int altno)
1016 usbd_interface_handle iface;
1017 usb_endpoint_descriptor_t *ed;
1019 struct ugen_endpoint *sce;
1020 u_int8_t niface, nendpt, endptno, endpt;
1023 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno));
1025 err = usbd_interface_count(sc->sc_udev, &niface);
1028 if (ifaceidx < 0 || ifaceidx >= niface)
1029 return (USBD_INVAL);
1031 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
1034 err = usbd_endpoint_count(iface, &nendpt);
1038 /* destroy the existing devices, we remake the new ones in a moment */
1039 ugen_destroy_devnodes(sc);
1041 /* XXX should only do this after setting new altno has succeeded */
1042 for (endptno = 0; endptno < nendpt; endptno++) {
1043 ed = usbd_interface2endpoint_descriptor(iface,endptno);
1044 endpt = ed->bEndpointAddress;
1045 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
1046 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
1052 /* change setting */
1053 err = usbd_set_interface(iface, altno);
1057 err = usbd_endpoint_count(iface, &nendpt);
1060 for (endptno = 0; endptno < nendpt; endptno++) {
1061 ed = usbd_interface2endpoint_descriptor(iface,endptno);
1062 endpt = ed->bEndpointAddress;
1063 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
1064 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
1070 /* make the new devices */
1071 ugen_make_devnodes(sc);
1076 /* Retrieve a complete descriptor for a certain device and index. */
1077 static usb_config_descriptor_t *
1078 ugen_get_cdesc(struct ugen_softc *sc, int index, int *lenp)
1080 usb_config_descriptor_t *cdesc, *tdesc, cdescr;
1084 if (index == USB_CURRENT_CONFIG_INDEX) {
1085 tdesc = usbd_get_config_descriptor(sc->sc_udev);
1086 len = UGETW(tdesc->wTotalLength);
1089 cdesc = kmalloc(len, M_TEMP, M_INTWAIT);
1090 memcpy(cdesc, tdesc, len);
1091 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len));
1093 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr);
1096 len = UGETW(cdescr.wTotalLength);
1097 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len));
1100 cdesc = kmalloc(len, M_TEMP, M_INTWAIT);
1101 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len);
1103 kfree(cdesc, M_TEMP);
1111 ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx)
1113 usbd_interface_handle iface;
1116 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
1119 return (usbd_get_interface_altindex(iface));
1123 ugen_do_ioctl(struct ugen_softc *sc, int endpt, u_long cmd,
1124 caddr_t addr, int flag)
1126 struct ugen_endpoint *sce;
1128 usbd_interface_handle iface;
1129 struct usb_config_desc *cd;
1130 usb_config_descriptor_t *cdesc;
1131 struct usb_interface_desc *id;
1132 usb_interface_descriptor_t *idesc;
1133 struct usb_endpoint_desc *ed;
1134 usb_endpoint_descriptor_t *edesc;
1135 struct usb_alt_interface *ai;
1136 struct usb_string_desc *si;
1139 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd));
1144 case USB_SET_SHORT_XFER:
1145 /* This flag only affects read */
1146 if (endpt == USB_CONTROL_ENDPOINT)
1148 sce = &sc->sc_endpoints[endpt][IN];
1152 if (sce->pipeh == NULL) {
1153 kprintf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n");
1158 sce->state |= UGEN_SHORT_OK;
1160 sce->state &= ~UGEN_SHORT_OK;
1162 case USB_SET_TIMEOUT:
1163 sce = &sc->sc_endpoints[endpt][IN];
1166 sce->timeout = *(int *)addr;
1172 if (endpt != USB_CONTROL_ENDPOINT)
1178 ugendebug = *(int *)addr;
1181 case USB_GET_CONFIG:
1182 err = usbd_get_config(sc->sc_udev, &conf);
1185 *(int *)addr = conf;
1187 case USB_SET_CONFIG:
1188 if (!(flag & FWRITE))
1190 err = ugen_set_config(sc, *(int *)addr);
1192 case USBD_NORMAL_COMPLETION:
1200 case USB_GET_ALTINTERFACE:
1201 ai = (struct usb_alt_interface *)addr;
1202 err = usbd_device2interface_handle(sc->sc_udev,
1203 ai->uai_interface_index, &iface);
1206 idesc = usbd_get_interface_descriptor(iface);
1209 ai->uai_alt_no = idesc->bAlternateSetting;
1211 case USB_SET_ALTINTERFACE:
1212 if (!(flag & FWRITE))
1214 ai = (struct usb_alt_interface *)addr;
1215 err = usbd_device2interface_handle(sc->sc_udev,
1216 ai->uai_interface_index, &iface);
1219 err = ugen_set_interface(sc, ai->uai_interface_index, ai->uai_alt_no);
1223 case USB_GET_NO_ALT:
1224 ai = (struct usb_alt_interface *)addr;
1225 cdesc = ugen_get_cdesc(sc, ai->uai_config_index, 0);
1228 idesc = usbd_find_idesc(cdesc, ai->uai_interface_index, 0);
1229 if (idesc == NULL) {
1230 kfree(cdesc, M_TEMP);
1233 ai->uai_alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber);
1234 kfree(cdesc, M_TEMP);
1236 case USB_GET_DEVICE_DESC:
1237 *(usb_device_descriptor_t *)addr =
1238 *usbd_get_device_descriptor(sc->sc_udev);
1240 case USB_GET_CONFIG_DESC:
1241 cd = (struct usb_config_desc *)addr;
1242 cdesc = ugen_get_cdesc(sc, cd->ucd_config_index, 0);
1245 cd->ucd_desc = *cdesc;
1246 kfree(cdesc, M_TEMP);
1248 case USB_GET_INTERFACE_DESC:
1249 id = (struct usb_interface_desc *)addr;
1250 cdesc = ugen_get_cdesc(sc, id->uid_config_index, 0);
1253 if (id->uid_config_index == USB_CURRENT_CONFIG_INDEX &&
1254 id->uid_alt_index == USB_CURRENT_ALT_INDEX)
1255 alt = ugen_get_alt_index(sc, id->uid_interface_index);
1257 alt = id->uid_alt_index;
1258 idesc = usbd_find_idesc(cdesc, id->uid_interface_index, alt);
1259 if (idesc == NULL) {
1260 kfree(cdesc, M_TEMP);
1263 id->uid_desc = *idesc;
1264 kfree(cdesc, M_TEMP);
1266 case USB_GET_ENDPOINT_DESC:
1267 ed = (struct usb_endpoint_desc *)addr;
1268 cdesc = ugen_get_cdesc(sc, ed->ued_config_index, 0);
1271 if (ed->ued_config_index == USB_CURRENT_CONFIG_INDEX &&
1272 ed->ued_alt_index == USB_CURRENT_ALT_INDEX)
1273 alt = ugen_get_alt_index(sc, ed->ued_interface_index);
1275 alt = ed->ued_alt_index;
1276 edesc = usbd_find_edesc(cdesc, ed->ued_interface_index,
1277 alt, ed->ued_endpoint_index);
1278 if (edesc == NULL) {
1279 kfree(cdesc, M_TEMP);
1282 ed->ued_desc = *edesc;
1283 kfree(cdesc, M_TEMP);
1285 case USB_GET_FULL_DESC:
1290 struct usb_full_desc *fd = (struct usb_full_desc *)addr;
1293 cdesc = ugen_get_cdesc(sc, fd->ufd_config_index, &len);
1294 if (len > fd->ufd_size)
1296 iov.iov_base = (caddr_t)fd->ufd_data;
1300 uio.uio_resid = len;
1302 uio.uio_segflg = UIO_USERSPACE;
1303 uio.uio_rw = UIO_READ;
1304 uio.uio_td = curthread;
1305 error = uiomove((void *)cdesc, len, &uio);
1306 kfree(cdesc, M_TEMP);
1309 case USB_GET_STRING_DESC:
1313 si = (struct usb_string_desc *)addr;
1314 err = usbd_get_string_desc(sc->sc_udev, si->usd_string_index,
1315 si->usd_language_id, &si->usd_desc, &size);
1320 case USB_DO_REQUEST:
1322 struct usb_ctl_request *ur = (void *)addr;
1323 int len = UGETW(ur->ucr_request.wLength);
1330 if (!(flag & FWRITE))
1332 /* Avoid requests that would damage the bus integrity. */
1333 if ((ur->ucr_request.bmRequestType == UT_WRITE_DEVICE &&
1334 ur->ucr_request.bRequest == UR_SET_ADDRESS) ||
1335 (ur->ucr_request.bmRequestType == UT_WRITE_DEVICE &&
1336 ur->ucr_request.bRequest == UR_SET_CONFIG) ||
1337 (ur->ucr_request.bmRequestType == UT_WRITE_INTERFACE &&
1338 ur->ucr_request.bRequest == UR_SET_INTERFACE))
1341 if (len < 0 || len > 32767)
1344 iov.iov_base = (caddr_t)ur->ucr_data;
1348 uio.uio_resid = len;
1350 uio.uio_segflg = UIO_USERSPACE;
1352 ur->ucr_request.bmRequestType & UT_READ ?
1353 UIO_READ : UIO_WRITE;
1354 uio.uio_td = curthread;
1355 ptr = kmalloc(len, M_TEMP, M_WAITOK);
1356 if (uio.uio_rw == UIO_WRITE) {
1357 error = uiomove(ptr, len, &uio);
1362 sce = &sc->sc_endpoints[endpt][IN];
1363 err = usbd_do_request_flags(sc->sc_udev, &ur->ucr_request,
1364 ptr, ur->ucr_flags, &ur->ucr_actlen, sce->timeout);
1370 if (uio.uio_rw == UIO_READ) {
1371 error = uiomove(ptr, len, &uio);
1381 case USB_GET_DEVICEINFO:
1382 usbd_fill_deviceinfo(sc->sc_udev,
1383 (struct usb_device_info *)addr, 1);
1392 ugenioctl(struct dev_ioctl_args *ap)
1394 cdev_t dev = ap->a_head.a_dev;
1395 int endpt = UGENENDPOINT(dev);
1396 struct ugen_softc *sc;
1399 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1402 error = ugen_do_ioctl(sc, endpt, ap->a_cmd, ap->a_data, ap->a_fflag);
1403 if (--sc->sc_refcnt < 0)
1404 usb_detach_wakeup(sc->sc_dev);
1409 ugenpoll(struct dev_poll_args *ap)
1411 cdev_t dev = ap->a_head.a_dev;
1412 struct ugen_softc *sc;
1413 struct ugen_endpoint *sce;
1416 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1422 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN];
1427 kprintf("ugenpoll: no edesc\n");
1431 kprintf("ugenpoll: no pipe\n");
1436 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
1438 if (ap->a_events & (POLLIN | POLLRDNORM)) {
1439 if (sce->q.c_cc > 0)
1440 revents |= ap->a_events & (POLLIN | POLLRDNORM);
1442 selrecord(curthread, &sce->rsel);
1445 case UE_ISOCHRONOUS:
1446 if (ap->a_events & (POLLIN | POLLRDNORM)) {
1447 if (sce->cur != sce->fill)
1448 revents |= ap->a_events & (POLLIN | POLLRDNORM);
1450 selrecord(curthread, &sce->rsel);
1455 * We have no easy way of determining if a read will
1456 * yield any data or a write will happen.
1457 * Pretend they will.
1459 revents |= ap->a_events &
1460 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM);
1466 ap->a_events = revents;
1470 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0);